/lɒk ɪn/ – Noun
Definition: Hành động hoặc quy định giữ nguyên hoặc cố định một điều gì đó
A more throughout explanation: a period during which you may not change a financial arrangement, often when a lender guarantees a specified interest rate for a certain amount of time
Example: If interest rates rise during your lock-in period, you will not be impacted – you will still pay the lower rate that you locked in.